Acupuncture for Cancer-Induced Bone Pain in Animal Models: A Systemic Review and Meta-Analysis

Figure 4

Forest plot of subgroup analysis according to animal species based on PWL. SD rat subgroup: forest plot of SD rat subgroup analyzation comparing PWL between acupuncture and control group. Wistar rat subgroup: forest plot of Wistar rat subgroup analyzation comparing PWL between acupuncture and control group. The black diamond represents the point estimate and 95% confidence interval. The green block at the point estimate of intervention effect with a horizontal line extending either side of the block represents a study. The area of the block indicates the weight assigned to that study in the meta-analysis while the horizontal black line depicts the 95% confidence interval. Statistical method is inverse variance. Random effects model was employed as analysis model. The effect measure was standard mean difference.